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21-crown-7

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EntityQ55176433· pop 5· linked from 3 articles

21-crown-7

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Also known as ethylene oxide cyclic heptamer

21-Crown-7 is an organic compound with the formula (C2H4O)7. Similar to other crown ethers, 21-crown-7 functions as a ligand for certain metal cations, with a specific affinity for caesium cations. The dipole moment of 21-crown-7 varies depending on the solvent and temperatures.

In the Vinony graph

Vinony's link graph records 3 inbound references to 21-crown-7, and connects out to caesium, digital object identifier and chemical formula.

It is catalogued under topics including Chembox image size set, Crown ethers and ECHA InfoCard ID from Wikidata.

Vinony links it to 4 Wikipedia language editions.

Chemical data

Formula
C14H28O7
Molecular weight
308.37 g/mol
IUPAC name
1,4,7,10,13,16,19-heptaoxacyclohenicosane
SMILES
C1COCCOCCOCCOCCOCCOCCO1
InChIKey
XKEHLMZHBXCJGZ-UHFFFAOYSA-N
XLogP
-0.8
Polar surface area
64.6 Ų
H-bond donors
0
H-bond acceptors
7
Formal charge
0

via PubChem

Wikidata facts

Subclass of
crown ether
Mass
308.183503236
Show 3 more facts
Commons category
21-crown-7
canonical SMILES
C1COCCOCCOCCOCCOCCOCCO1
chemical formula
C₁₄H₂₁O₇
Sources (2)

via Wikidata · CC0

~1 min read

Encyclopedic overview

2 sections
Contents
  • References
  • External links

21-Crown-7 is an organic compound with the formula (C2H4O)7. Similar to other crown ethers, 21-crown-7 functions as a ligand for certain metal cations, with a specific affinity for caesium cations. The dipole moment of 21-crown-7 varies depending on the solvent and temperatures.

== References ==

Excerpted from Wikipedia’s “21-crown-7” article, available under the CC BY-SA 4.0 licence.

Available in 4 languages

via Wikidata sitelinks · CC0

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